High-stability flange

Abstract

The invention relates to the technical field of flanges, in particular to a high-stability flange which comprises a first flange plate and a second flange plate, the first flange plate and the second flange plate are fixedly arranged at the ends of two pipelines in a sleeving mode respectively, bolt holes are formed in the surfaces of the first flange plate and the second flange plate, and a reinforcing buckle plate is connected to one side of the first flange plate in an inserted mode. A plurality of inserting blocks are fixed to the surface of the reinforcing buckle plate and inserted into the outer ring faces of the first flange plate and the second flange plate, and an inserting ring is fixed to the surface of the reinforcing buckle plate. The high-stability flange has the beneficial effects that through the design of the reinforcing buckle plates and the inserting blocks, pre-limiting between the flange plates is achieved, and the situation that the flange plates are dislocated or disengaged when not fixed through bolts is effectively avoided. And meanwhile, the rubber clamping strips on the surfaces of the inserting blocks further enhance the stability of connection, so that the flange plate can be tightly connected in a high-pressure, high-temperature or strong-vibration working environment.

Description

Technical Field

[0001] The invention relates to the field of flanges, in particular to a high-stability flange. Background Art

[0002] In the field of pipeline connection, flange connection is a common connection method, which connects two flanges tightly together through bolts to achieve pipeline connectivity. However, the traditional flange connection method has some problems in certain specific environments. For example, in a working environment with high pressure, high temperature or strong vibration, the flanges are prone to loosening or leakage, which will not only affect the normal operation of the pipeline, but may also cause safety accidents.

[0003] In order to solve these problems, engineers have been exploring more stable and reliable flange connection methods. Traditional improvement measures mainly include increasing the number of bolts, using high-strength bolts and nuts, and increasing the thickness of the flange. However, although these methods have improved the stability of flange connections to a certain extent, they have also brought about problems such as increased costs and difficult installation.

[0004] Therefore, the present invention proposes a high-stability flange, which aims to improve the stability and sealing of the flange connection through an innovative structural design, while reducing production costs and installation difficulty. Summary of the invention

[0005] The object of the present invention is to provide a highly stable flange to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-stability flange, comprising flange one and flange two, flange one and flange two are respectively sleeved and fixed on the ends of two pipes, bolt holes are opened on the surfaces of flange one and flange two, a reinforcing buckle plate is inserted on one side of flange one, a plurality of plug-in blocks are fixed on the surface of the reinforcing buckle plate, the plug-in blocks are inserted in the outer annular surfaces of flange one and flange two, an insert ring is fixed on the surface of the reinforcing buckle plate, the insert ring is inserted in the surface of flange one, a rubber ring is embedded in the inner annular surface of the insert ring, the bolt holes on the surfaces of flange one and flange two are penetrated by bolts, and the bolts penetrate the reinforcing buckle plate, and the rubber ring is clamped between the bolts and the insert ring to produce elastic deformation.

[0007] Preferably, an assembly groove is provided on the side of flange one away from flange two, the assembly groove is a circular groove, the outer diameter of the assembly groove is equal to the outer diameter of flange one, the reinforcement buckle plate is a circular ring plate with an "L"-shaped cross-section, and one end of the reinforcement buckle plate is sleeved in the assembly groove.

[0008] Preferably, the outer ring surfaces of the flange plate 1 and the flange plate 2 are both provided with slots.

[0009] The slots are connected to the assembly slots, and the insert blocks are inserted into the two groups of slots.

[0010] Preferably, two rubber clips are fixed on the surface of the plug block, and the two rubber clips are respectively inserted into two card slots, and the two card slots are respectively opened on the surface of the two slots.

[0011] The card slot is an arc-shaped slot, and the insert block is an arc-shaped strip.

[0012] Preferably, the surface of the reinforcing buckle plate is provided with a through hole corresponding to the bolt hole, and an embedding groove is provided at one end of the bolt hole on one surface of the flange, the embedding groove and the through hole correspond one to one, and the plug ring is inserted into the embedding groove.

[0013] Preferably, the insert ring is a circular ring plate with a concave cross section, a rubber ring is fixed in the inner ring opening of the insert ring, and the inner ring diameter of the rubber ring is smaller than the hole diameter of the bolt hole.

[0014] Preferably, both sides of the inner ring openings of the flange plate 1 and the flange plate 2 are provided with side grooves.

[0015] The side groove is in the form of a circular groove, a sealing gasket is fixed on the surface of the side groove, the sealing gasket is in the form of a circular ring plate, and the thickness of the sealing gasket is greater than the depth of the side groove.

[0016] Preferably, the surface of the reinforcing gusset plate is provided with notches, and the notches and perforations are distributed alternately.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The high-stability flange proposed in the present invention realizes the pre-limitation between the flanges through the design of the reinforcing buckle plate and the plug block, effectively avoiding the dislocation or separation of the flange when the flange is not fixed with bolts. At the same time, the rubber clip on the surface of the plug block further enhances the stability of the connection, so that the flange can maintain a tight connection even in a high-pressure, high-temperature or strong vibration working environment. The side grooves and sealing gaskets on both sides of the inner ring of the flange are designed so that when the bolts are tightened, the sealing gaskets are tightly clamped between the flanges to form an effective sealing barrier. Since the thickness of the sealing gasket is greater than the depth of the side groove, it can provide a better sealing effect and effectively prevent the occurrence of leakage problems. The design of the reinforcing buckle plate makes the installation process simpler and faster. The staff only needs to push the reinforcing buckle plate into the assembly slot, and the plug block can be automatically inserted into the slot and pre-limited. Subsequently, the connection can be easily completed by bolts and nuts. This design not only improves the installation efficiency, but also reduces the difficulty of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a side view of the structure of the present invention;

[0021] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 5 This is a schematic diagram of the connection structure of flange 1 and flange 2 of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the reinforcement gusset plate of the present invention;

[0025] Figure 7 This is a structural schematic diagram of a flange according to the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of flange 2 of the present invention.

[0027] In the figure: flange one 1, flange two 2, pipe 3, bolt hole 4, embedded groove 5, assembly groove 6, reinforcement buckle plate 7, slot 8, card slot 9, plug block 10, rubber clip 11, through hole 12, plug ring 13, rubber ring 14, bolt 15, side groove 16, sealing gasket 17, and notch 18. DETAILED DESCRIPTION

[0028] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 8The present invention provides a technical solution: a high-stability flange, including a flange plate 1 and a flange plate 2, the flange plate 1 and the flange plate 2 are respectively sleeved and fixed on the ends of two pipes 3, the surfaces of the flange plate 1 and the flange plate 2 are both provided with bolt holes 4, one side of the flange plate 1 is plugged with a reinforcement buckle plate 7, the surface of the reinforcement buckle plate 7 is fixed with a plurality of plug blocks 10, the plug blocks 10 are plugged into the outer annular surfaces of the flange plate 1 and the flange plate 2, and the side of the flange plate 1 away from the flange plate 2 is provided with an assembly groove 6, and the assembly groove 6 is a circular groove The outer diameter of the assembly groove 6 is equal to the outer diameter of the flange 1, the reinforcement buckle plate 7 is an annular plate with an "L"-shaped cross-section, one end of the reinforcement buckle plate 7 is sleeved in the assembly groove 6, and slots 8 are provided on the outer ring surfaces of the flange 1 and the flange 2, the slots 8 are connected to the assembly groove 6, and the plug-in block 10 is inserted in the two groups of slots 8; two rubber clip strips 11 are fixed on the surface of the plug-in block 10, and the two rubber clip strips 11 are respectively inserted in the two card slots 9, and the two card slots 9 are respectively opened on the surfaces of the two slots 8, the card slots 9 are arc-shaped grooves, and the plug-in block 10 is an arc-shaped strip.

[0030] During use, when two pipes 3 equipped with flange 1 and flange 2 are connected, when the bolt holes 4 on the surfaces of flange 1 and flange 2 are opposite to each other and flange 1 and flange 2 are close together, the reinforcing buckle plate 7 is pushed into the assembly groove 6, the plug block 10 is inserted into the slot 8 at the outer ring of flange 1 and flange 2, and the rubber clip 11 is inserted into the corresponding clip groove 9. At this time, the pre-limiting of flange 1 and flange 2 is realized to avoid misalignment or separation when flange 1 and flange 2 are not fixed with bolts 15.

[0031] A plug ring 13 is fixed on the surface of the reinforcing gusset plate 7, and the plug ring 13 is inserted into the surface of the flange 1. A rubber ring 14 is embedded in the inner ring surface of the plug ring 13. The bolt holes 4 on the surfaces of the flange 1 and the flange 2 are penetrated by bolts 15, and the bolts 15 penetrate the reinforcing gusset plate 7. The rubber ring 14 is clamped between the bolts 15 and the plug ring 13 to produce elastic deformation. A through hole 12 is provided on the surface of the reinforcing gusset plate 7, and the through hole 12 corresponds to the bolt hole 4. An embedding groove 5 is provided at one end of the bolt hole 4 on the surface of the flange 1, and the embedding groove 5 corresponds to the through hole 12 one by one, and the plug ring 13 is inserted into the embedding groove 5; the plug ring 13 is a circular ring plate with a "concave"-shaped cross section, and a rubber ring 14 is fixed in the inner ring mouth of the plug ring 13, and the inner ring diameter of the rubber ring 14 is smaller than the aperture diameter of the bolt hole 4; a notch 18 is provided on the surface of the reinforcing gusset plate 7, and the notch 18 and the through hole 12 are distributed alternately.

[0032] When in use, after the screw rod of the bolt 15 is passed through the through hole 12 and the bolt holes 4 on the surface of the flange 1 and the flange 2 in sequence, the nut is threaded onto the screw rod and then screwed and locked. The rubber ring 14 is clamped between the screw rod and the insert ring 13 to prevent the insert ring 13 from falling off from the through hole 12 at will.

[0033] Side grooves 16 are provided on both sides of the inner ring openings of flange 1 and flange 2. The side grooves 16 are circular grooves. A sealing gasket 17 is fixed on the surface of the side groove 16. The sealing gasket 17 is a circular ring plate. The thickness of the sealing gasket 17 is greater than the depth of the side groove 16. When in use, after the bolts 15 are tightened, the sealing gasket 17 is tightly clamped between flange 1 and flange 2, thereby improving the sealing performance of flange 1 and flange 2 after being connected.

[0034] The usage process of high stability flange is summarized as follows:

[0035] Initial installation preparation: Flange 1 and flange 2 are respectively mounted and fixed on the ends of two pipes 3. Bolt holes 4 are preset on the surfaces of flange 1 and flange 2 for subsequent bolt connection.

[0036] Flange alignment: connect two pipes 3 through flange 1 and flange 2, ensuring that the bolt holes 4 on the surfaces of flange 1 and flange 2 are opposite and the two flanges fit tightly.

[0037] Reinforcement gusset plate pre-limiting: One end of the reinforcement gusset plate 7 (circular plate with an "L"-shaped cross section) is pushed into the assembly groove 6 of the flange 1. The plug block 10 (arc-shaped strip) on the surface of the reinforcement gusset plate 7 is inserted into the slot 8 at the outer ring of the flange 1 and the flange 2. The rubber clip strip 11 on the surface of the plug block 10 is further inserted into the slot 9 on the surface of the slot 8 to achieve preliminary pre-limiting to prevent the flange from being misaligned or detached before being fixed with bolts.

[0038] Bolt connection and reinforcement: The screw of the bolt 15 passes through the through hole 12 of the reinforcement gusset plate 7, the bolt hole 4 of the flange 1 and the flange 2 in sequence. The nut is sleeved on the screw of the bolt 15 and screwed to lock it, so as to realize the formal connection between the flange 1 and the flange 2. The plug ring 13 on the surface of the reinforcement gusset plate 7 is plugged into the surface of the flange 1, and the rubber ring 14 inside the plug ring 13 is elastically deformed under the action of the bolt 15 and is clamped between the bolt 15 and the plug ring 13, so as to prevent the plug ring 13 from falling off from the through hole 12, and further enhance the stability of the connection.

[0039] Improved sealing performance: Side grooves 16 are provided on both sides of the inner ring openings of flange 1 and flange 2, and sealing gaskets 17 are fixed in the side grooves 16. When the bolts 15 are tightened, the sealing gaskets 17 are tightly clamped between flange 1 and flange 2. Since the thickness of the sealing gaskets 17 is greater than the depth of the side grooves 16, the sealing performance of the flanges after connection can be effectively improved.

[0040] Special design description: The notches 18 and the holes 12 on the surface of the reinforcement gusset plate 7 are arranged alternately, which may be used to reduce weight or meet specific installation requirements. The cross section of the insert ring 13 is a "concave" shape, and the rubber ring 14 at its inner ring mouth is designed to ensure a close fit with the bolt 15 to prevent it from falling off.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high stability flange, comprising a flange plate 1 (1) and a flange plate 2 (2), wherein the flange plate 1 (1) and the flange plate 2 (2) are respectively sleeved and fixed on the ends of two pipes (3), and bolt holes (4) are provided on the surfaces of the flange plate 1 (1) and the flange plate 2 (2), and characterized in that: A reinforcing plate (7) is inserted on one side of the flange (1), and a plurality of insert blocks (10) are fixed on the surface of the reinforcing plate (7). The insert blocks (10) are inserted on the outer annular surfaces of the flange (1) and the flange (2). An insert ring (13) is fixed on the surface of the reinforcing plate (7), and the insert ring (13) is inserted on the surface of the flange (1). A rubber ring (14) is embedded on the inner annular surface of the insert ring (13). Bolts (15) penetrate bolt holes (4) on the surfaces of the flange (1) and the flange (2), and the bolts (15) penetrate the reinforcing plate (7). The rubber ring (14) is clamped between the bolts (15) and the insert ring (13) to generate elastic deformation.

2. A high stability flange according to claim 1, characterized in that: The flange plate 1 (1) is provided with an assembly groove (6) on a side away from the flange plate 2 (2). The assembly groove (6) is a circular groove. The outer diameter of the assembly groove (6) is equal to the outer diameter of the flange plate 1 (1). The reinforcement buckle plate (7) is a circular plate with an "L"-shaped cross section. One end of the reinforcement buckle plate (7) is sleeved in the assembly groove (6).

3. A high stability flange according to claim 2, characterized in that: The outer ring surfaces of the flange plate 1 (1) and the flange plate 2 (2) are both provided with slots (8), the slots (8) are connected to the assembly slots (6), and the inserts (10) are inserted into the two groups of slots (8).

4. A high stability flange according to claim 3, characterized in that: Two rubber clip strips (11) are fixed on the surface of the insert block (10), and the two rubber clip strips (11) are respectively inserted into two clip grooves (9). The two clip grooves (9) are respectively opened on the surfaces of the two slots (8), the clip grooves (9) are arc-shaped grooves, and the insert block (10) is an arc-shaped strip.

5. The high stability flange according to claim 1, characterized in that: The reinforcing gusset plate (7) has a through hole (12) on its surface, the through hole (12) corresponding to the bolt hole (4), an embedding groove (5) is formed at one end of the bolt hole (4) on the surface of the flange (1), the embedding groove (5) corresponding to the through hole (12) one by one, and the insert ring (13) is inserted into the embedding groove (5).

6. The high stability flange according to claim 5, characterized in that: The insert ring (13) is a circular ring plate with a concave cross section. A rubber ring (14) is fixed in the inner ring opening of the insert ring (13). The inner ring diameter of the rubber ring (14) is smaller than the hole diameter of the bolt hole (4).

7. The high stability flange according to claim 1, characterized in that: Side grooves (16) are provided on both sides of the inner ring openings of the flange plate 1 (1) and the flange plate 2 (2). The side grooves (16) are circular ring grooves. A sealing gasket (17) is fixed on the surface of the side groove (16). The sealing gasket (17) is a circular ring plate. The thickness of the sealing gasket (17) is greater than the depth of the side groove (16).

8. The high stability flange according to claim 5, characterized in that: The surface of the reinforcing gusset plate (7) is provided with a notch (18), and the notch (18) and the perforations (12) are distributed alternately.

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